Glass formation and conductivity in the Ag2SAgPO3 system: Evidence against cluster pathway mechanisms for high ionic conductivity

J. Liu, J. Portier, B. Tanguy, J. J. Videau, Charles Angell

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The glassforming region in the system Ag2SAgPO3 has been determined and studies of electrical conductivity, infrared absorption, thermal expansion and transport number of Ag+ ions have been made. The results of the electrical conductivity and the transport number measurements show that the conduction is essentially ionic in nature and due to silver ions alone. In this system, as in AgIAgPO3, the logarithm of the ionic conductivity increases linearly with increasing Ag2S mole fraction and extrapolates to the value of the superionic crystalline Ag2S. However, an explanation similar to the α-AgI cluster pathway model proposed for AgI-containing systems is not tenable since IR spectra show that Ag2S dissolves by an acid-base chemical ordering process to give shorter phosphate chain structures which approach the pyrophosphate stoichiometry at the glassforming limit.

Original languageEnglish (US)
Pages (from-to)87-92
Number of pages6
JournalSolid State Ionics
Volume34
Issue number1-2
DOIs
StatePublished - 1989
Externally publishedYes

Fingerprint

Ionic conductivity
ion currents
Ions
Glass
conductivity
electrical resistivity
glass
Infrared absorption
logarithms
Silver
Stoichiometry
infrared absorption
Thermal expansion
stoichiometry
thermal expansion
phosphates
ions
Phosphates
silver
Crystalline materials

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Glass formation and conductivity in the Ag2SAgPO3 system : Evidence against cluster pathway mechanisms for high ionic conductivity. / Liu, J.; Portier, J.; Tanguy, B.; Videau, J. J.; Angell, Charles.

In: Solid State Ionics, Vol. 34, No. 1-2, 1989, p. 87-92.

Research output: Contribution to journalArticle

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